- 问题详情:Inthepast,AmericansusedtothinkoftheUnitedStatesasa“meltingpot”ofimmigrants(移民)frommanydifferentculturestotheUnitedStates,theiroldwaysmeltedawayandtheybecamepartofacompletelynewculture.TheUnitedStateswaslikenedtoabigpotofsoup,whichhadbitso...
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